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20050495 = 510338933
BaseRepresentation
bin100110001111…
…1001000111111
31101201200002221
41030133020333
520113103440
61553430211
7332266153
oct114371077
941650087
1020050495
1110355263
12686b367
1342003ca
14293d063
151b60d4a
hex131f23f

20050495 has 8 divisors (see below), whose sum is σ = 24294816. Its totient is φ = 15884256.

The previous prime is 20050493. The next prime is 20050507. The reversal of 20050495 is 59405002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20050495 - 21 = 20050493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20050493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18952 + ... + 19981.

It is an arithmetic number, because the mean of its divisors is an integer number (3036852).

Almost surely, 220050495 is an apocalyptic number.

20050495 is a deficient number, since it is larger than the sum of its proper divisors (4244321).

20050495 is a wasteful number, since it uses less digits than its factorization.

20050495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39041.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 20050495 is about 4477.7779087400. Note that the first 3 decimals coincide. The cubic root of 20050495 is about 271.6700105393.

Adding to 20050495 its reverse (59405002), we get a palindrome (79455497).

The spelling of 20050495 in words is "twenty million, fifty thousand, four hundred ninety-five".

Divisors: 1 5 103 515 38933 194665 4010099 20050495